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1girl blonde_hair blue_eyes female_focus happy_birthday hat k-on! kotobuki_tsumugi long_hair piano_keys school_uniform shizupu simple_background sitting solo sun_hat

1girl blonde_hair blue_eyes female_focus happy_birthday hat k-on!kotobuki_tsumugi long_hair piano_keys school_uniform shizupu simple_background sitting solo sun_hat

1girl blonde_hair blue_eyes female_focus happy_birthday hat k-on! kotobuki_tsumugi long_hair piano_keys school_uniform shizupu simple_background sitting solo sun_hat

2girls blonde_hair blue_eyes brown_eyes brown_hair k-on! kotobuki_tsumugi long_hair multiple_girls necktie no_thank_you!_(k-on!) school_uniform shizupu short_hair tainaka_ritsu v

1girl aged_down brown_eyes brown_hair hirasawa_yui k-on! kindergarten kindergarten_uniform lobster school_uniform shizupu short_hair simple_background topknot white_background